[DML] Re: Brass screw and rocker question

["stainlessilusion" <5n-@xxxxxxx>]

Sparking wire was fixed, and wires were checked again to make sure the
order was right. Timing and valve lash have nothing to do with my idle
problem, they've been ruled out after rechecking the checking; as is
vacuum leaks. I know you can't adjust valves if they're being held
open (valves adj. was completed successfully days ago so it doesn't
even matter)- it is just when I read "on the rock" in the book and
looked at my #5 I&E, they were off the lobe-I expected "on the rock"
to mean one was supposed to be on the lobe-valve open but now that I
read it again it says both rockers on the rock-no way that both valves
would be open at the same time so I understand now. I'm trying to
figure out if the cam is a tooth off-what I should have done was go by
cam markings in relation to the key on the crankshaft-a bit late now.
Once I make sure my cams are where they're supposed to be, I'm going
to do a little adjustment with the CO screw-this has been adjusted
before by PO BEFORE replacing anything and also my air adj. screw was
well open-so they just made things good to make the engine run well
back then-NOW that it is full of new parts and good adjustments (not
to mention daily startups instead of adjusting an engine just after
years or rest)-it may be safe to say the CO adjustment is no good for
the condition of the engine now. Who was it again that said their cam
was off a tooth from factory? What were the symptoms?? -----Dani B. #5003
> 
> If you saw sparks flying around you probably need a new cap and rotor
> and maybe even ignition wires. That would cause the bad quality idle.
> "O" rings are not supposed to expand. You really do have to have the
> correct size "O" ring, one that is "close" won't work. Make sure the
> pipe is smooth and round where it seals against the "O" ring. The 3
> brass screws are for adjusting the idle air but for the Delorean they
> are ONLY used for setting up the mixture screw and then the lower one
> is closed. The other 2 don't matter if the lower one is closed. You
> can only adjust the rocker when the valve is closed so figure it out.
> There is no clearance when the cam is opening the valve.
> David Teitelbaum
> vin 10757 
> 
> 
> -- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@xxxx> wrote:
> > 
> > 
> > I'm slowly making headway with the way my engine is running. I pulled
> > the intake off again to inspect the "O" ring that the "Auxiliary air
> > pipe" goes through. Seemed to sit pretty worn so I replaced the ring
> > with a similar one and coated it with oil in hopes of it to expand
> > while it's in there. Upon reassembly, I noticed there are sparks
> > flying around where the cap touches the mixture control unit. To fix
> > this I just unbolted and lifted the unit up a bit-and I got my
> > cylinder back to firing. QUESTION: In the book it mentions that the
> > air adjustment screw is supposed to be fully seated along with the 2
> > balance screws-are these the brass screws the book is talking about?
> > It is idling much lower now, and while holding an RPM it is much
> > smoother but still a little crackle here and there. While idling it
> > still vibrates like hell. Another question-when the book says the
> > rockers are supposed to be "on the rock", that means that the rocker
> > is supposed to be on the top of the lobe right? -Dani B. #5003-almost
> > fixed!








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